these 2 derivations will be built:
  /nix/store/s3f7fblfj8kxfq6rbh64r7n23x9s2ph8-hunk-0.23.0.drv
  /nix/store/3y6pzl3q2mk1y4wzgm72r8bj7a1vxww9-check-hunk.drv